Home / 519,938.20-779,907.30-295,211.80

Finding the Fourth Proportional to 519,938.20, 779,907.30 and 295,211.80

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Solution

The fourth proportional to 519,938.20, 779,907.30 and 295,211.80 is: 442,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,938.20 : 779,907.30 = 295,211.80 : x
  2. Step 2: Convert to fraction form
    519,938.20/779,907.30 = 295,211.80/x
  3. Step 3: Cross multiply
    519,938.20x = 779,907.30 × 295,211.80
  4. Step 4: Simplify right side
    519,938.20x = 230,237,837,866.14
  5. Step 5: Solve for x
    x = 230,237,837,866.14/519,938.20
  6. Step 6: Final answer
    x = 442,817.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.